NCT 2018

In mid-January 2018, SM Entertainment unveiled NCT 2018, a project involving all 18 members of NCT. On January 30, SM released a video titled "NCT 2018 Yearbook #1", which featured all prior members and introduced new members Kun, Lucas, and Jungwoo. In February, NCT released a series of online documentary videos titled NCTmentary as part of the NCT 2018 project.